Files
node/test/async-hooks/test-timerwrap.setTimeout.js
T
Thorsten Lorenz e3e56f1d71 test: adding tests for initHooks API
Async wrap providers tested:

- crypto.randomBytes
- crypto.pbkdf2
- fs event wrap
- fsreqwrap access
- fsreqwrap readFile
- getaddrinforeq wrap
- getnameinforeq wrap
- pipe connect wrap
- query wrap
- pipewrap
- processwrap
- shutdown wrap
- tcpwrap
- udpwrap
- send wrap
- detailed signal wrap
- statwatcher
- timerwrap via setTimeout
- timerwrap via setInterval
- for Immediate
- http parser request
- http parser response
- connection via ssl server
- tls wrap
- write wrap
- ttywrap via readstream
- ttywrap via wriream
- zctx via zlib binding deflate

Embedder API:

-  async-event tests
  - one test looks at the happy paths
  - another ensures that in cases of events emitted in an order that
  doesn't make sense, the order is enforced by async hooks throwing a
  meaningful error
  - embedder enforcement tests are split up since async hook stack
  corruption now the process
  - therefore we launch a child and check for error output of the offending code

Additional tests:

- tests that show that we can enable/disable hooks inside their lifetime
events
- tests that verify the graph of resources triggering the creation of
other resources

Test Helpers:

- init-hooks:
  - returns one collector instance
  - when created an async hook is created and the lifetime events are
  registered to call the appropriate collector functions
  - the collector also exposes `enable` and `disable` functions which call
  through to the async hook

- hook checks:
  - checks invocations of life time hooks against the actual invocations
  that were collected
  - in some cases like `destroy` a min/max range of invocations can be
  supplied since in these cases the exact number is non-deterministic

- verify graph:
  - verifies the triggerIds of specific async resources are as expected,
  i.e. the creation of resources was triggered by the resource we expect
  - includes a printGraph function to generate easily readable test
  input for verify graph
  - both functions prune TickObjects to create less brittle and easier
  to understand tests

PR-URL: https://github.com/nodejs/node/pull/12892
Ref: https://github.com/nodejs/node/pull/11883
Ref: https://github.com/nodejs/node/pull/8531
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
2017-05-10 22:22:33 +02:00

79 lines
2.9 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const tick = require('./tick');
const initHooks = require('./init-hooks');
const { checkInvocations } = require('./hook-checks');
const TIMEOUT = common.platformTimeout(100);
const hooks = initHooks();
hooks.enable();
// install first timeout
setTimeout(common.mustCall(ontimeout), TIMEOUT);
const as = hooks.activitiesOfTypes('TIMERWRAP');
assert.strictEqual(as.length, 1, 'one timer wrap when first timeout installed');
const t1 = as[0];
assert.strictEqual(t1.type, 'TIMERWRAP', 'timer wrap');
assert.strictEqual(typeof t1.uid, 'number', 'uid is a number');
assert.strictEqual(typeof t1.triggerId, 'number', 'triggerId is a number');
checkInvocations(t1, { init: 1 }, 't1: when first timer installed');
function ontimeout() {
checkInvocations(t1, { init: 1, before: 1 }, 't1: when first timer fired');
// install second timeout with same TIMEOUT to see timer wrap being reused
setTimeout(onsecondTimeout, TIMEOUT);
const as = hooks.activitiesOfTypes('TIMERWRAP');
assert.strictEqual(as.length, 1,
'one timer wrap when second timer installed');
checkInvocations(t1, { init: 1, before: 1 },
't1: when second timer installed');
}
// even though we install 3 timers we only have two timerwrap resources created
// as one is reused for the two timers with the same timeout
let t2;
function onsecondTimeout() {
let as = hooks.activitiesOfTypes('TIMERWRAP');
assert.strictEqual(as.length, 1, 'one timer wrap when second timer fired');
checkInvocations(t1, { init: 1, before: 2, after: 1 },
't1: when second timer fired');
// install third timeout with different TIMEOUT
setTimeout(onthirdTimeout, TIMEOUT + 1);
as = hooks.activitiesOfTypes('TIMERWRAP');
assert.strictEqual(as.length, 2,
'two timer wraps when third timer installed');
t2 = as[1];
assert.strictEqual(t2.type, 'TIMERWRAP', 'timer wrap');
assert.strictEqual(typeof t2.uid, 'number', 'uid is a number');
assert.strictEqual(typeof t2.triggerId, 'number', 'triggerId is a number');
checkInvocations(t1, { init: 1, before: 2, after: 1 },
't1: when third timer installed');
checkInvocations(t2, { init: 1 },
't2: when third timer installed');
}
function onthirdTimeout() {
checkInvocations(t1, { init: 1, before: 2, after: 2, destroy: 1 },
't1: when third timer fired');
checkInvocations(t2, { init: 1, before: 1 },
't2: when third timer fired');
tick(2);
}
process.on('exit', onexit);
function onexit() {
hooks.disable();
hooks.sanityCheck('TIMERWRAP');
checkInvocations(t1, { init: 1, before: 2, after: 2, destroy: 1 },
't1: when process exits');
checkInvocations(t2, { init: 1, before: 1, after: 1, destroy: 1 },
't2: when process exits');
}